Evaluation of the Recursive Projection Method for Efficient Unsteady Turbulent CFD Simulations
2004 (English)In: 24th INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES, 2004, 1-13 p.Conference paper (Refereed)
The Recursive Projection Method (RPM) hasbeen implemented into an unstructured CFD code to improve the efficiency of dual time steppingfor unsteady turbulent CFD simulations.RPM is a combined implicit-explicit method that enhances convergence. It can easily be implementedinto existing codes and the solver’s existing acceleration techniques can be used withoutchange. The method has been evaluated by computing the periodic self-induced shock oscillations over an 18% thick biconvex airfoil at0◦ angle of attack, a Mach number of 0.76 anda Reynolds number of 11 million. On average,RPM accelerated the convergence of the innerloop of dual time stepping to a predefined convergencecriterion by a factor of about 2.5.
Place, publisher, year, edition, pages
2004. 1-13 p.
Recursive Projection Method, CFD, dual time stepping, convergence, unsteady flow, buffet
Computer Engineering Vehicle Engineering
IdentifiersURN: urn:nbn:se:kth:diva-4907OAI: oai:DiVA.org:kth-4907DiVA: diva2:6779
24th INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES
QC 201010152005-02-022005-02-022010-10-19Bibliographically approved